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3 years ago

. Calculate the kinetic energy of a 100.0-kg meteor approaching the Earth at a speed of 10.0 km/s. Remember that 1 km = 1000 m.

Physics

2 answers:

anastassius [24]3 years ago

7 0

Ke = (1/2)mv²

m = 100kg, v = 10 km/s = 10*1000 = 10000m/s

Ke = (1/2)*100*10000

Ke = 500000 Joules

Elan Coil [88]3 years ago

4 0

Kinetic energy is solved by the formula,
KE = 0.5 x m x v²
First, convert the given speed in km/s to that with unit of m/s.
(10 km/s) x (1000 m/ 1 km) = 10000 m/s
Use the formula to obtain the KE
KE = 0.5 x (100 kg) x (10000 m/s )²
Thus, the value of its kinetic energy is 5x10^9 J.

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